The MAX13052ESA+T belongs to Maxim's MAX13050/13052/13053/13054 family of pin-compatible, industry-standard high-speed CAN transceivers with extended ±80V fault protection. These devices are the interface between a CAN protocol controller and the physical bus wires of a control-area network, ideal for industrial-network applications where overvoltage protection is required, and are pin-for-pin compatible with the PCA82C250/251.

The MAX13052 supports high-speed operation up to 1Mbps, ISO 11898 compatible, with a dominant TXD timeout that prevents an erroneous controller from clamping the bus. Its slope-control mode programs the transmitter slew rate (40kbps to 500kbps) to lower EMI, while the SPLIT pin provides a 0.5 x V_CC common-mode stabilization output for split-termination networks, improving bus robustness.

Robust protection includes ±80V fault protection on the bus pins, ±8kV IEC61000-4-2 Contact ESD, a common-mode range greater than ±12V, current limiting, short-circuit protection and thermal shutdown. A low-current standby mode (set via RS) lets the device idle while monitoring the bus, making the MAX13052 well suited to DeviceNet, heavy-duty trucks and industrial networks.

Note: Refer to the official Maxim MAX13050-MAX13054 datasheet for full electrical parameters. Subject to change without notice; verify all parameters before final design.

The MAX13052ESA+T is supplied in the 8-pin SO (narrow small-outline) package, indicated by the SA suffix, and is pin-for-pin compatible with the industry-standard PCA82C250/251 footprint. The compact SO suits node boards on industrial CAN, DeviceNet and in-vehicle buses.

The "+" suffix indicates lead-free, RoHS-compliant finish and the "T" suffix tape-and-reel packing. Standard 8-lead SO land patterns and reflow profiles apply; use split termination (two resistors with the midpoint to the SPLIT pin and a bypass capacitor) for best common-mode performance. The diagram below shows the typical operating circuit.

The MAX13052 uses an 8-pin SO pinout (top view):

• Pin 1 - TXD: Transmit data input (from CAN controller; internal 25kΩ pull-up to V_CC).
• Pin 2 - GND: Ground. Pin 3 - VCC: Supply (bypass 0.1µF to GND).
• Pin 4 - RXD: Receive data output (to CAN controller).
• Pin 5 - SPLIT: Common-mode stabilization output (0.5 x V_CC; high-impedance in standby).
• Pin 6 - CANL / Pin 7 - CANH: CAN bus low / high lines (±80V fault-protected).
• Pin 8 - RS: Mode-select input - low = high-speed, resistor to GND = slope control, high = standby.

Connect TXD/RXD to the CAN controller, CANH/CANL to the bus with split termination tied to SPLIT, and RS to pick high-speed/slope-control/standby. Confirm the exact pin assignment against the datasheet image below before layout.

The following parts are listed for reference. Verify features, modes and package before substituting.

Maxim Integrated, now part of Analog Devices (NASDAQ: ADI), is a leading supplier of analog and mixed-signal semiconductors, well known for rugged CAN and RS-485 interface transceivers. The MAX13050-MAX13054 fault-protected CAN family is widely used in industrial, DeviceNet and in-vehicle networks needing high robustness.

Maxim/ADI provides complete datasheets, application notes and long-term supply, with authorized distribution and technical support across China for both prototype and volume programs.